Brown Driver Briggs

 1. to deceive, lie, fail, grow lean, be disappointing, be untrue, be
insufficient, be found liars, belie, deny, dissemble, deal falsely
  1) (Qal) to become lean
  2) (Niphal) to cringe, feign obedience
  3) (Piel)
1c1. to deceive, deny falsely
1c2. to act deceptively
1c3. to cringe
1c4. to disappoint, fail
  4) (Hithpael) to cringe, feign obedience